Sent from my LG-F400K using XDA Free mobile app
Gear Live actively tracks your steps & heart rate on-demand; no workout mode currently available. GPS data obtained from paired device. Fitness apps are forthcoming, for instance Viewranger is releasing app with Google Wear support http://www.viewranger.com/en-gb/abou...h-android-wear
Runtastic has now updated to support wear fully. It has cards (displaying the usual summary info you get on phone, or something similar to what it does on sw2 already). And actions such as pause, start, view map etc. In fact iirc they have updated their screenshots on google play to show off wear functionality.